Front matter
Brother Arnold translation
THE LETTER OF PETRUS PEREGRINUS ON THE MAGNET, A.D. 1269
TRANSLATED BY BROTHER ARNOLD, M.Sc. PRINCIPAL OF LA SALLE INSTITUTE, TROY WITH INTRODUCTORY NOTICE BY BROTHER POTAMIAN, D.Sc. PROFESSOR OF PHYSICS IN MANHATTAN COLLEGE, NEW YORK
NEW YORK McGRAW PUBLISHING COMPANY MCMIV
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Copyright, 1904, by McGraw Publishing Company
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